No screen output on Xavier A on Pegasus Drive, but Xavier B, works fine

Please provide the following info:
Hardware Platform: [DRIVE AGX Pegasus™ Developer Kit]
Software Version: [DRIVE Software 10]
Host Machine Version: [native Ubuntu 18.04]
SDK Manager Version: [-]

Hello, since last week, last time I restarted the pegasus drive, the screen wont boot up. but, for some reason Xavier B does work, when I plug straight into XB hdmi port, but XA-(1 to 4) does not work at all.
any idea what can be the reason and what can be done?
Thanks in advance.

Dear @mikepo2808,
Are you able to connect to XA via minicom. Is it possible to re flash the target? If so, please check and let us know if the issue persists?

I faced same problem on my Drive AGX Xavier Dev Kit. Had to re-flash the kit to solve the issue.

Dear @mikepo2808,
did you check re-flashing? Could you provide any update?